Hammer head



FIG. 1 is a front perspective view of the present invention.

FIG. 2 is a rear perspective view of FIG. 1.

FIG. 3 is a front elevation view of FIG. 1.

FIG. 4 is a top plan view of FIG. 1.

FIG. 5 is a rear elevation view of FIG. 1.

FIG. 6 is a bottom plan view of FIG. 1.

FIG. 7 is a left side elevation view of FIG. 1; and,

FIG. 8 is a right side elevation view of FIG. 1.

The dashed lines in the views illustrate features that form no part of the claimed design. 

CLAIM The ornamental design for a hammer head, as shown and described. 